luan underlayment
Sophia Aguilar
Updated on July 06, 2026
Luan provides a smooth surface for installing vinyl flooring. If you are looking for the perfect underlayment to put beneath your sheet vinyl, then Luan would be an affordable option.
Is underlayment and Luan the same thing?
Luan is also sometimes used as an underlayment for resilient flooring, but professionals warn that it should only be used as a supplement to a more durable subfloor, mostly because of the danger of swelling from moisture intrusion. Luan is also used for some cabinet applications, such as for thin divider panels.
What is the difference between plywood and Luan?
Luan or lauan is actually a type of plywood. It’s made from tropical timber, often from the Shorea family. The name comes from a tree in the Philippines, but you can find it all over south-east Asia. They make it from thin veneers of luan that are glued together to produce a soft plywood that has a very smooth surface.
What do you put Luan down with?
Luan installation does not usually require an adhesive between the subfloor and the luan, but if an adhesive is called for, choose a subfloor adhesive. A measuring tape and a chalk line are indispensable for making accurate cuts in the panels.
Can tile be installed over Luan?
Luan plywood is an unacceptable and unapproved substrate to receive tile or cementitious backer units (CBU). Ceramic tile, stone and/or cementitious backer unit installations utilizing any Luan species will not be warranted by CUSTOM®.
Is Luan plywood waterproof?
It will be outdoors, but only rarely wet. This doesn’t need to be structural, just hide the joists. Quarter inch thick would be fine. I’ll put some battens on for decoration and it will get a solid stain.
What side of Luan goes up?
When installing lauan underlayment, make sure the smooth side is facing up and any nails or staples from installing the lauan are hammered down. This ensures an even surface for installation of the finished flooring.
Can you paint luan plywood?
You can stain luan if you wish, but you will need to do significant work to make it look nice. Even when you paint it, you’ll need to use primer (at least a couple of coats) and make sure you sand between applications for a smooth finish.
Does Luan plywood warp?
Luan Plywood Will Warp Over Time
Because of its unpredictable nature, luan is more prone to warping over time – especially if exposed to extreme conditions or moisture.
What is underlayment plywood?
Plywood underlayment is the layer of plywood that is fastened over the structural subfloor. It creates a uniform, smooth surface for resilient flooring, vinyl tile, ceramic tile, carpet, engineered flooring, and wood floors.
What is another name for Luan?
Luan refers to a common type of plywood in the United States. It goes by many different names: Philippine mahogany, meranti plywood or the alternative spelling lauan.
What kind of nails do you use for underlayment?
PRO-FIT underlayment nails are perfect for laying plywood or composition underlayment over floor joists or existing wood floors. The ring shank design engages with the wood, offering greater holding power and keeping the nail from backing out over time, while the thinner shank minimizes splitting.
What is Luan plywood used for?
Lauan plywood (also known as Luan Plywood) is a commercial term used throughout the United States that typically refers to a 1/8″ – 1/4″ tropical hardwood plywood panel used for underlayment in flooring, lamination, paper overlay, furniture, and millwork applications.